Jim B (MSP)
Forum Pro
This is exactly what I want.
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90D disappointment???
- Thread starter FastUno
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Yep, they are calling it focus bracketing, but that is focus stacking. I am getting it now.
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I wonder how rapidly it shoots. Not everyone is as steady as a tripod.
What you describe sounds like an interesting SLR/mirrorless hybrid. Does such a thing as a combo OVF/EVF even exist?
You can use it with a tripod if you want. In fact, the manual suggests doing so. It does not say how fast the images are taken. I guess that depends on how fast the motors in the lens can change the focus point. It can do a 999-shot stack, if I understand it correctly I didn’t read it super carefully but I will test it once I get my pre-order
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Of course, and I probably would. Ditto for when using the intervalometer.
Jim B (MSP)
Forum Pro
I would guess 7 frames a sec, as that seems to be the speed in AI Servo
If it is tracking, the camera tops out at 10 FPS. I don’t think it is tracking when stacking, so the 10 FPS would be the upper limit if the lens can force a movement by the selected increment in 1/10 of a second. It will be easier to just wait until it shows up to test it out. It won’t be that long.
I wondered whether it might use some kind of burst mode when stacking.
I agree that all will be known soon enough.
I did not think I would have any interest in the focus stacking (bracketing) but after reading the description I am interested. I shoot a lot of macro work and DOF is an issue. I am not sure how many images would be required. With a small aperture to help out, I would guess just a few will do it. Even handheld that might work.
The exposure time will control the speed of the shots taken in a bracket of shots. So the max FPS of the camera likely won’t play a role unless your exposure time is way less than 1/10 second.
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bolt2014
Forum Enthusiast
Do you think all those things you want come for free? :-D
Jim B (MSP)
Forum Pro
I am shooting handheld with an 80D. With a 100mm macro at f/5 to f/8, shutter about 1/100, I am shooting in manual focus, in a burst mode, and rotating the lens through different focus points. I am actually doing pretty well that way, generally throwing away the outer edges, maybe 10%. The end stacked photo shows few issues and a much improved DOF. I'll generally have 8-15 usable images to stack.
KENTGA
Veteran Member
Don't you love it when you get these posts and the OP disappears?
Kent
Kent
Steve Balcombe
Forum Pro
Focus stacking tends to be used in one of two ways. Sometimes the aim is to create an image which is similar to a single frame taken at a small aperture (say f/16), but of much higher quality due to using a larger aperture (say f/5.6) to collect more light and to avoid diffraction softening which can be very significant. It also avoids bringing an unwanted background into focus. Sometimes, however, the aim is to create an image which could not have been taken by conventional means - I think of these as 'extreme' focus stacking.
The first of these might typically require 10, 15, 20 frames or something in that region, and with modern stacking software which copes well with slight misalignments between frames, along with good technique, they can be taken handheld although a tripod is generally recommended. Sometimes as little as three or four frames will result in a big improvement versus the single frame.
Extreme focus stacking is a different kettle of fish, requiring a solid setup, inanimate subjects, and a focus rail to aid in making very tiny focusing adjustments. There even motor driven, programmable focus rails.
There is a ton of information online if you want to learn more.
Yes, as noted above, but I don't know how good the in-camera software is.
Product Support : EOS 90D
Designed for those looking to hone their craft further, EOS 90D have 45 cross-type AF points in its 100% coverage optical viewfinder and can shoot up to 10fps even ...
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